5 Electrical Installation
5.1 Warnings
During electrical installation, observe the relevant local and
national regulations in addition to the information in this
manual.
WARNING
LEAKAGE/GROUNDING CURRENT HAZARD
Leakage/grounding currents are >3.5 mA. Failure to
ground the SAB and the ISD servo drives properly could
result in death or serious injury.
•
Ensure the correct grounding of the devices by
a certified electrical installer in accordance with
applicable national and local electrical
standards and directives and the instructions
contained in this manual.
WARNING
HIGH VOLTAGE
The SAB contains high voltage when connected to the
supply that could result in death or serious injury.
•
Ensure that installation, start-up, and
maintenance are only performed by qualified
personnel.
5.2 Electrical Environmental Conditions
Compliance with the following electrical environmental
conditions is necessary to enable safe and effective
operation of the ISD 510 servo system:
•
Grounded 3-phase mains network, 400–480 V AC
•
3-phase frequency 47–63 Hz
•
3-phase lines and PE line
•
External controller supply input, 24–48 V DC
(PELV)
•
Observe the national statutory provisions.
•
The leakage current is >3.5 mA. Therefore use a
type B residual current device (RCD).
•
The SAB must be mounted in a control cabinet.
5.3 EMC-Compliant Installation
To obtain an EMC-compliant installation, follow the
instructions provided in
and
chapter 5.8 Connecting the Components
5.4 Grounding
Grounding for electrical safety
•
Ground the ISD servo drive with the PE wire of
the feed-in cable (see
•
Ensure that the machine frame has a proper
electrical connection to the flange of the servo
drive. Use the front side flange surface. Ensure PE
connection on that part of the machine. Refer to
the
VLT
®
Integrated Servo Drive ISD
®
510 System
Design Guide
for further information.
•
Use a dedicated ground wire for input power and
control wiring.
•
Do not ground 1 SAB to another in a daisy-chain
format.
•
Keep the ground wire connections as short as
possible.
•
Follow the wiring requirements in this manual.
•
Ensure a minimum ground wire cross-section of
at least 10 mm
2
or 2 separate ground wires both
complying with the dimensioning rules. See EN/
IEC 61800-5-1 for further information.
Grounding for EMC-compliant installation
•
Establish electrical contact between the cable
shield and the SAB enclosure by using metal
cable glands, or by using the clamps provided on
the SAB (see
•
Use high-strand wire to reduce electrical
interference.
•
Do not use pigtails.
•
Ensure a minimum distance of 200 mm between
signal and power cables.
•
Only cross cables at 90
°
.
NOTICE
POTENTIAL EQUALIZATION
There is a risk of electrical interference when the ground
potential between the ISD 510 servo system and the
machine is different. Install equalizing cables between
the system components. The recommended cable cross-
section is 16 mm
2
.
Electrical Installation
Operating Instructions
MG75K102
Danfoss A/S © 12/2015 All rights reserved.
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